NSF-Listed Sanitary Threaded Stem Caster, Swivel Caster, 275 lb Load Rating, 0 to 299 lb, 4 in Wheel Dia., 1 1/4 in Wheel Width, Polyurethane Wheel/Tread Material, 5 in Mounting Height, Delrin, 1/2 In.-13 x 1-1/2 in Caster Stem Size, Threaded, Steel...